Improvement in plows



F. C. SMITH.

Plow-Colter.

Patented Apr. 25, 1848.

LITHD. CO. N.Y (OSBDRNE'S PROCESS FREDERICK 0. SMITH, OF HARPERS FERRY,VIRGINIA.

IMPROVEMENT IN PLOWS.

Specification forming part; of Letters Patent No. 5,526, dated April 25,1848.

'scription of the construction and operation thereof, reference beinghad tothe accompanying drawings, making apartof this specification, inwhich Figure 1 is a perspective view of the moldboard, share, and colterof my-improv'ed plow, united toeachothera'nd detached from the beam andhandles. Fig. 2 is a perspective view of the share and mold-board unitedto each other and detached from the other parts of the plow, and Fig. 3is a perspective view of the colter detached.

The nature of my invention consists in the combination of a colter withthe share and mold-board in such a manner that the colter serves-notonly the purpose of a colter, but also as a cutting-edge at the front ofthe moldboard and as a supporting-brace for securing the share andmold-board to each other. Similar letters refer to corresponding partsin all the figures.

A is the mold-board. B is the share, and O is the colter. D is a plateon the standard, rising from the front edge of the mold board, to whichthe beam is attached.

The colter C isincliued at an angle of about thirty six degrees. Itslowerend terminates in the horizontal point 7:.

The colter is secured to the mold board and share as follows: Amortiseor socket is formed in the rear end of the point 7t for the reception ofa tenon or point, t, on the front end of the share. 4

f is a shoulder on the inner side of the front edge of the mold-board. 7

his a lug east on the inner side of the moldboard immediately in therear of the shoulder f. The point or tenon 2' having been inserted inthe socket at the rear end of the point 7;, the

horizontal shank at the upper end of the colter is passed under theshoulderfand is secured to the lug h by the screw-bolt c.

lis a lip at the rear end of the horizontal shank of the colter.

m is a recess in the log it for the reception of the key or wedge d.

g is a slot in the horizontal shank of the colter, through which thescrew-bolt 6 passes. The key 61 presses against the lip l at the rearend of the shank of the colter, and in combination with the screw-bolt eand the shoulder fconfines the mold-board to the point of the share inso perfect a manner as to impart great stiffness and strength to thecombined moldboard, share, and colter. The point at which the colter issecured to the mold-board is just above its rubbing-surface, and itprojects out in front of the mold-board a sufficient distance to preventthe rubbish and trash as it passes up over the colter from accumulatingon the front edge of the mold-board. 1n practiceit is found that norubbish adheres to the inclin ed colter or mold-board to obstruct theprogress of my brace-colter plow; butitis all discharged and covered bythe furrow.

Having thus fully described the construction and operation of myself-clearing bracecolter plow, what I claim therein as new, and desireto secure by Letters Patent, is-

The combination otthe inclined self-clearing colter and point (in onepiece) with the share and mold-board in such a manner that the colterserves not only the purpose of a colter, but also as a cutting-edge forthe mold-hoard and a supporting-brace for giving stiffness and strengthto the share and mold-board, substantially as herein set forth, notconfining myself to the identical manner of accomplishing this object,as herein set forth, but to something substantially the same.

F. C. SMITH.-

\Vitnesses:

Z. 0. ROBBINS, GUY O. HUMPHRIES.

